<template>
  <div class="detail-page">
    <van-nav-bar
      left-text="返回"
      @click-left="$router.back()"
      fixed
      title="面经详情"
      />
    <header class="header">
      <h1>{{article.stem}}</h1>

      <p>
        {{ article.createdAt }} | {{article.views}} 浏览量 | {{article.likeCount}} 点赞数
      </p>

      <p>
        <img :src="article.avatar" alt="" />
        <span>{{article.creator}}</span>

      </p>

    </header>

    <main class="body" v-html="article.content">

    </main>

    <div class="opt">
      <van-icon :class="{active:article.likeFlag}" name="like-o" @click="updateLike" />
      <van-icon :class="{active:article.collectFlag}" name="star-o" @click="updateCollect" />
    </div>

  </div>

</template>

<script>
import { getArticleDetail, updateCollect, updateLike } from '@/api/article'

export default {
  name: 'detail-page',
  data () {
    return {
      article: {}
    }
  },
  async created () {
    const { data } = await getArticleDetail(this.$route.params.id)
    this.article = data
  },
  methods: {
    async updateLike () {
      await updateLike(this.article.id)
      this.article.likeFlag = !this.article.likeFlag
      if (this.article.likeFlag) {
        this.article.likeCount++
        this.$toast('点赞成功')
      } else {
        this.article.likeCount--
        this.$toast('取消点赞')
      }
    },

    async updateCollect () {
      await updateCollect(this.article.id)
      this.article.collectFlag = !this.article.collectFlag
      if (this.article.collectFlag) {
        this.$toast('收藏成功')
      } else {
        this.$toast('收藏点赞')
      }
    }
  }

}

</script>

<style lang="less" scoped>
  .detail-page {
    margin-top: 44px;
    overflow: hidden;
    padding: 0 15px;
    .header {
      h1 {
        font-size: 24px;
      }
      p {
        color: #999;
        font-size: 12px;
        display: flex;
        align-items: center;
      }
      img {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        overflow: hidden;
      }
    }
    .opt {
      position: fixed;
      bottom: 100px;
      right: 0;
      > .van-icon {
        margin-right: 20px;
        background: #fff;
        width: 40px;
        height: 40px;
        line-height: 40px;
        text-align: center;
        border-radius: 50%;
        box-shadow: 2px 2px 10px #ccc;
        font-size: 18px;
        &.active {
          background: #FEC635;
          color: #fff;
        }
      }
    }
  }
</style>
